XHProf: Hierarchical Profiler Report

Diff Report: Run #539205a48c548: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #539206513e72e: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip: Click a function name below to drill down.

Drupal\Core\KeyValueStore\DatabaseStorageExpirable::setWithExpire	Run #539205a48c548	Run #539206513e72e	Diff	Diff%
Number of Function Calls	2	2	0	0.0%
Incl. Wall Time (microsec)	10,133	9,789	-344	-3.4%
Incl. Wall Time (microsec) per call	5,067	4,895	-172	-3.4%
Excl. Wall Time (microsec)	77	68	-9	-11.7%
Incl. CPU (microsecs)	5,776	5,518	-258	-4.5%
Incl. CPU (microsecs) per call	2,888	2,759	-129	-4.5%
Excl. CPU (microsec)	59	63	4	6.8%
Incl. MemUse (bytes)	101,512	101,512	0	0.0%
Incl. MemUse (bytes) per call	50,756	50,756	0	0.0%
Excl. MemUse (bytes)	-40,116	-40,116	0	0.0%
Incl. PeakMemUse (bytes)	294,400	294,400	0	0.0%
Incl. PeakMemUse (bytes) per call	147,200	147,200	0	0.0%
Excl. PeakMemUse (bytes)	632	632	0	0.0%

Function Name	Calls Diff	Calls Diff%	Incl. Wall Diff (microsec)	IWall Diff%	Incl. CPU Diff (microsec)	ICpu Diff%	Incl. MemUse Diff (bytes)	IMemUse Diff%	Incl. PeakMemUse Diff (bytes)	IPeakMemUse Diff%
*Current Function*
Drupal\Core\KeyValueStore\DatabaseStorageExpirable::setWithExpire	0	N/A%	-344	-37.8%	-258	-74.1%	0	N/A%	0	N/A%
Exclusive Metrics Diff for Current Function			-9	-2.6%	4	1.6%	0	N/A%	0	N/A%
*Parent function*
Drupal\Core\Form\FormBuilder::setCache	0	N/A%	-344	-100.0%	-258	-100.0%	0	N/A%	0	N/A%
*Child functions*
Drupal\Core\Database\Query\Merge::execute	0	N/A%	-299	-86.9%	-223	-86.4%	0	N/A%	0	N/A%
Drupal\Component\Serialization\PhpSerialize::encode	0	N/A%	-33	-9.6%	-33	-12.8%	0	N/A%	0	N/A%
Drupal\Core\Database\Connection::merge	0	N/A%	-5	-1.5%	-6	-2.3%	0	N/A%	0	N/A%
Drupal\Core\Database\Query\Merge::keys	0	N/A%	1	0.3%	1	0.4%	0	N/A%	0	N/A%
Drupal\Core\Database\Query\Merge::fields	0	N/A%	1	0.3%	-1	-0.4%	0	N/A%	0	N/A%